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Pin installer and updater downloads to the builds tip commit.

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raw.githubusercontent.com caches branch-named files, so the installer was serving a stale zip after CI rewrote builds.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
pepaskopec-blip 2026-09-17 17:31:16 +02:00
commit 7fabe1846e
5 changed files with 151 additions and 64 deletions
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27
installers/maturita-installer-linux.sh
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@ -1,9 +1,9 @@
#!/bin/sh
# maturita.c installer for Linux.
#
# Carries no application of its own: it downloads the current build straight
# from the repository's `builds` branch, which CI rewrites whenever main
# changes. This file therefore never goes stale.
# Carries no application of its own. Fastly caches branch-named URLs on
# raw.githubusercontent.com, so this script looks up the tip of `builds`
# and downloads that commit — not a stale AppImage from the last five minutes.
#
# Run it with: sh maturita-installer-linux.sh
# The app updates itself from then on.
@ -13,10 +13,7 @@ set -eu
REPO="pepaskopec-blip/maturita.c"
BRANCH="builds"
ASSET="maturita-linux-x86_64.AppImage"
URL="https://raw.githubusercontent.com/$REPO/$BRANCH/$ASSET"
# ~/Applications is where desktop environments look for AppImages, and the app
# keeps its progress/ directory next to its own file.
DEST_DIR="$HOME/Applications"
DEST="$DEST_DIR/maturita.AppImage"
DESKTOP_DIR="$HOME/.local/share/applications"
@ -25,6 +22,13 @@ ICON_DIR="$HOME/.local/share/icons/hicolor/512x512/apps"
say() { printf '%s\n' "$*"; }
die() { printf '\nError: %s\n' "$*" >&2; exit 1; }
builds_sha() {
curl -fsSL --max-time 20 \
"https://github.com/$REPO/commits/$BRANCH.atom" |
sed -n 's/.*Commit\/\([0-9a-f]\{40\}\).*/\1/p' |
head -n 1
}
say "Installing maturita.C"
say "---------------------"
@ -41,16 +45,19 @@ mkdir -p "$DEST_DIR"
tmp=$(mktemp -d)
trap 'rm -rf "$tmp"' EXIT INT TERM
say "Downloading the latest build..."
curl -fL --progress-bar -o "$tmp/$ASSET" "$URL" ||
say "Looking up the latest build..."
sha=$(builds_sha)
[ ${#sha} -eq 40 ] || die "could not find the latest build on GitHub."
URL="https://raw.githubusercontent.com/$REPO/$sha/$ASSET"
say "Downloading build $(printf '%.7s' "$sha")..."
curl -fL --progress-bar --max-time 1800 -o "$tmp/$ASSET" "$URL" ||
die "the download failed. Check your internet connection."
say "Installing to $DEST"
chmod +x "$tmp/$ASSET"
mv -f "$tmp/$ASSET" "$DEST" || die "could not write to $DEST_DIR."
# A menu entry needs the icon as a separate file, which the AppImage can
# unpack without FUSE. Losing the icon is not worth failing the install over.
if (cd "$tmp" && "$DEST" --appimage-extract \
'usr/share/icons/hicolor/512x512/apps/maturita.png' >/dev/null 2>&1); then
icon="$tmp/squashfs-root/usr/share/icons/hicolor/512x512/apps/maturita.png"